454 AUSTIN HOBART CLARK, 



Singapore; A in b o i n a ; Blanche Bay, New Britain; Philip- 

 pine Islands. 



Depth. Littoral, and down to 90 meters. 



Notes. One of the specimens has sixty-seven arms 65 mm long; the 

 centrodorsal is thin-discoidal, small, the bare dorsal pole being 2 mm in 

 diameter; the cirri are XX, 14 16, 9 mm long; the first cirrus segment 

 is short, the fourth about as long as broad, the sixth or seventh the longest, 

 one third to one half again as long as broad ; the last six or seven are 

 about as long as broad; the outermost seven or eight bear blunt spines 

 or tubercles on the distal mid-dorsal border; the longer earlier segments 

 are slightly constricted centrally, but this feature is scarcely noticeable. 

 The colour is grayish white W 7 ith a median stripe of darker on the arms. 

 The iuterradial perisome is heavily plated. A second specimen has fifty- 

 nine arms 60 mm long ; the cirri are VII (plus nine undeveloped), 15, 

 10 mm long; the dorsal perisome is completely plated, but the plates are 

 small. The colour is yellow - brown, with traces of a broad mediodorsal 

 band of darker. The third specimen is similar, but smaller. 



There was at first considerable doubt in my mind whether these spe- 

 cimens were the young of a large, or the fully grown of a small, species. 

 That they are young appears to be conclusively shown by the irregular 

 number of arms, both in the specimens taken as a whole and on the 

 several rays of each individual ; by the frequent occurrence of regenerating 

 arm branches; by the occurrence of a generalized type of cirrus instead 

 of the characteristic cirri composed of very strongly "dice-box-shaped" 

 segments found in the small species ; by the very small centrodorsals, these 

 being proportionately much larger in the small cirriferous forms; by the 

 defective arrangement of the cirri on the centrodorsal of one of the spe- 

 cimens; and by the absence of combs on the distal pinnules. 



Granted that these are young individuals, their characteristics are such 

 that they can only be the young of ('. typica. 



Genus Coniant/itis A. H. Clark. 



Submenus Comantheria A. H. Clark. 



Comantheria briarens (Bell). 



Literature: See "The recent Crinoids of Australia", and '-The Crinoids of the Indian 

 Ocean". 



Locality: V Vicinity of Perth (2 specimens). 



Further Distribution. North o f P o r t W a 1 c o 1 1 (19 42,1' S. lat., 

 116 49,8' E. long.); Baudi n Island; Bas sett-S mith Bank; "north- 

 western Australia"; Port Den is on, Queensland; Amboinn: 

 Ban da; Siinda Islands: \Yest Java; Philippine Islands. 



